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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">mgssuvest</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник МГСУ</journal-title><trans-title-group xml:lang="en"><trans-title>Vestnik MGSU</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1997-0935</issn><issn pub-type="epub">2304-6600</issn><publisher><publisher-name>Moscow State University of Civil Engineering (National Research University) (MGSU)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.22227/1997-0935.2025.1.37-49</article-id><article-id custom-type="elpub" pub-id-type="custom">mgssuvest-470</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Проектирование и конструирование строительных систем. Строительная механика. Основания и фундаменты, подземные сооружения</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Construction system design and layout planning. Construction mechanics. Bases and foundations, underground structures</subject></subj-group></article-categories><title-group><article-title>Экспериментальное и численное сравнение напряженно-деформированного состояния арки и комбинированной арочной конструкции</article-title><trans-title-group xml:lang="en"><trans-title>Experimental and numerical comparison of the stress-strain state of an arch and a combined arch structure</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8530-9546</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Долгушева</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Dolgusheva</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Вера Витальевна Долгушева — преподаватель кафедры металлических и деревянных конструкций</p><p>129337, г. Москва, Ярославское шоссе, д. 26</p><p>РИНЦ AuthorID: 1061655, Scopus: 57212309767</p></bio><bio xml:lang="en"><p>Vera V. Dolgusheva — lecturer of the Department of Metal and Wooden Structures</p><p>26 Yaroslavskoe shosse, Moscow, 129337</p><p>RSCI AuthorID: 1061655, Scopus: 57212309767</p></bio><email xlink:type="simple">DolgushevaVV@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ибрагимов</surname><given-names>А. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Ibragimov</surname><given-names>A. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Александр Майорович Ибрагимов — доктор технических наук, профессор, профессор кафедры металлических и деревянных конструкций</p><p>129337, г. Москва, Ярославское шоссе, д. 26</p><p>РИНЦ AuthorID: 704948, Scopus: 57189524528, ResearcherID: AFN-6830-2022</p></bio><bio xml:lang="en"><p>Alexander M. Ibragimov — Doctor of Technical Sciences, Professor, Professor of the Department of Metal and Wooden Structures</p><p>26 Yaroslavskoe shosse, Moscow, 129337</p><p>RSCI AuthorID: 704948, Scopus: 57189524528, ResearcherID: AFN-6830-2022</p></bio><email xlink:type="simple">igasu_alex@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Национальный исследовательский Московский государственный строительный университет (НИУ МГСУ)<country>Россия</country></aff><aff xml:lang="en">Moscow State University of Civil Engineering (National Research University) (MGSU)<country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>31</day><month>01</month><year>2025</year></pub-date><volume>20</volume><issue>1</issue><fpage>37</fpage><lpage>49</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Долгушева В.В., Ибрагимов А.М., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Долгушева В.В., Ибрагимов А.М.</copyright-holder><copyright-holder xml:lang="en">Dolgusheva V.V., Ibragimov A.M.</copyright-holder><license license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.vestnikmgsu.ru/jour/article/view/470">https://www.vestnikmgsu.ru/jour/article/view/470</self-uri><abstract><sec><title>Введение</title><p>Введение. Экспериментальные исследования натурных строительных конструкций покрытий трудоемки, имеют высокую стоимость, не предполагают размещение в лабораториях из-за больших габаритов. В связи с этим часто испытания строительных конструкций проводятся на масштабных моделях. Работа комбинированных арочных систем малоизучена, расчетным моделям таких систем требуется экспериментальное подтверждение. Представленное экспериментальное исследование направлено на получение данных о действительной работе арки и комбинированной арочной конструкции с лучевыми затяжками для последующего сопоставления экспериментальных данных с расчетными моделями.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Экспериментальная модель разработана с использованием смешанного подобия в масштабе 1:10. Физико-механические характеристики материалов модели определены по стандартным методикам. Разработаны и описаны способ создания заданного преднапряжения в затяжках арки и методика ее испытания. Расчетные модели реализованы в программном конечно-элементном комплексе ЛИРА-САПР с учетом геометрически нелинейного характера работы конструкции, напряжения в сечениях установлены с помощью процессора «Конструктор сечений».</p></sec><sec><title>Результаты</title><p>Результаты. По результатам экспериментальных исследований и численных расчетов получены напряжения и перемещения в сечениях арок. Показаны перемещения схемы, графики соответствия экспериментальных данных и результатов расчета. Проанализированы направления для улучшения экспериментальных моделей подобных комбинированных систем с затяжками.</p></sec><sec><title>Выводы</title><p>Выводы. Арочная комбинированная система с лучевыми затяжками позволяет выровнять значения напряжений в поясе арки в сравнении с аркой без затяжек. Максимальные напряжения в сечениях арки и максимальные прогибы в середине пролета арки снижаются в 3 раза при устройстве затяжек.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. Experimental research projects of full-scale building roof constructions are labour-intensive, high-cost, and do not require placement in laboratories due to their large size. In this regard, tests of building constructions are often carried out on scale models. The operation of combined arch systems is poorly studied; calculation models of such systems require experimental confirmation. The presented experimental research project is aimed at obtaining data on the actual operation of the arch and a combined arch structure with radial ties for subsequent comparison of experimental data with calculation models.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. The experimental model is developed using mixed similarity at a scale of 1:10. The physical and mechanical parameters of the model materials were determined using standard methods. A method for creating a given prestress in the arch ties and a method for testing it are developed and described. The calculation models are implemented in the LIRA-SAPR finite element software package, considering the geometrically nonlinear structure operation, the stresses in the arch sections are determined using the “Section Designer” processor.</p></sec><sec><title>Results</title><p>Results. Based on the results of experimental studies and numerical calculations, stresses and displacements in arch sections were obtained. The movements of the circuit, graphs of correspondence between experimental data and calculation results are shown. Directions for improving experimental models of such combined systems with ties are analyzed.</p></sec><sec><title>Conclusions</title><p>Conclusions. An arch combined system with radial ties allows to equalize the stress values in the arch belt in comparison with an arch without ties. The maximum stresses in the arch sections and the maximum deflections in the middle of the arch span are reduced by 3 times when tightening is installed.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>комбинированные конструкции</kwd><kwd>стальная арка с лучевыми затяжками</kwd><kwd>преднапряжение</kwd><kwd>арочная экспериментальная модель</kwd><kwd>масштабный эксперимент</kwd><kwd>арочно-вантовая система</kwd><kwd>геометрическая нелинейность</kwd><kwd>ЛИРА-САПР</kwd><kwd>моделирование вант</kwd></kwd-group><kwd-group xml:lang="en"><kwd>combined structures</kwd><kwd>steel arch with a tie</kwd><kwd>prestressing</kwd><kwd>arch experimental model</kwd><kwd>scale test</kwd><kwd>cable roof system supported by arches</kwd><kwd>geometrical nonlinearity</kwd><kwd>LIRA-SAPR</kwd><kwd>prestressing using temperature</kwd><kwd>cable stay modelling</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Авторы выражают благодарность директору ИПГС, заведующему кафедрой МДК, доктору технических наук А.Р. Туснину; заведующему кафедрой ЖБК, доктору технических наук А.Г. Тамразяну; заместителю директора НИИ ЭМ О.А. Корневу; заведующему лабораторией испытаний строительных конструкций материалов и изделий В.А. Какуше; старшему преподавателю кафедры МДК Т.В. Долгушеву; преподавателю кафедры ЖБК М.В. Кудрявцеву за консультации и поддержку в подготовке экспериментального исследования; выпускнику кафедры сварки, диагностики и специальной робототехники МГТУ им. Н.Э. Баумана Е.А. Сутягину за помощь в изготовлении экспериментальной модели; сотрудникам лаборатории испытаний строительных конструкций инженерам М.В. Кудрявцеву, Х.Х. Абдул Ахада, М.З. Шарипову, Ф.М. Вардак, Ю.А. Жидкову, аспиранту кафедры МДК П.А. Спасскому за помощь в проведении экспериментального исследования; рецензентам за проявленное внимание к работе и ценные замечания. Экспериментальные исследования проведены в рамках гранта НИУ МГСУ для аспирантов на проведение физических экспериментов в 2023 г. при поддержке сотрудников лаборатории испытаний строительных конструкций материалов и изделий НИИ ЭМ в лаборатории каменных и железобетонных конструкций.</funding-statement></funding-group><funding-group xml:lang="en"><funding-statement>The authors express their gratitude to the director of the Institute of Industrial and Civil Construction, head of the Department of Metal and Wooden Structures (MWS), Doctor of Technical Sciences. A.R. Tusnin; Head of the Department of Reinforced Concrete and Stone Structures (RCS), Doctor of Technical Sciences A.G. Tamrazyan; Deputy Director of the Scientific Research Institute of Experimental Mechanics (SRI EM) O.A. Kornev; the head of the laboratory for testing building structures, materials and products, V.A. Kakusha; senior teacher of the MWS department T.V. Dolgushev; teacher of the RCS department, M.V. Kudryavtsev for consultations and support in the preparation of the experimental study; graduate of the Department of Welding, Diagnostics and Special Robotics at Moscow State Technical University. N.E. Bauman E.A. Sutyagin for assistance in making the experimental model; employees of the laboratory for testing building structures, engineers M.V. Kudryavtsev, H.H. Abdul Ahad, M.Z. Sharipov, F.M. Vardak, Y.A. Zhidkov, postgraduate student of the MWS department P.A. Spassky for assistance in conducting the experimental research; reviewers for their attention to the work and valuable comments. Experimental studies were carried out within the framework of a grant from the National Research University MGSU for graduate students to conduct physical experiments in 2023 with the support of employees of the laboratory for testing building structures of materials and products of the SRI EM in the laboratory of Stone and Reinforced Concrete Structures.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Суворовцев Б.А. Особенности проектирования пролетных строений мостов комбинированных систем с гибкими наклонными подвесками // Современные технологии. Системный анализ. Моделирование. 2017. № 1 (53). С. 219–224. EDN YKRLYD.</mixed-citation><mixed-citation xml:lang="en">Surovtcev B.A. Designing specialities of the combined bridge arch superstructures with inclined hangers — “Network arches”. Modern Technologies. System Analysis. 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